Thin film transistor substrate and fabricating method thereof, liquid crystal display panel using the same and fabricating method thereof
First Claim
1. A liquid crystal display device, comprising:
- first and second substrates;
a gate line on the first substrate;
a gate insulating film on the first substrate;
a data line crossing the gate line to define a pixel area;
a pixel hole in the pixel area;
a pixel electrode formed of a transparent conductive layer on the gate insulating film in the pixel hole in the pixel area;
a thin film transistor including a gate electrode, a source electrode, a drain electrode, and a semiconductor layer;
a pad connected to at least one of the gate line and the data line, and including a lower pad electrode on the substrate and an upper pad electrode in a first contact hole that passes through the gate insulating film to expose the lower pad electrode and connected to the lower pad electrode;
a data link extending from the lower pad electrode and overlapping with the data line, wherein the data link and the lower pad electrode are formed on a same layer;
a contact electrode in a second contact hole that passes through the gate insulating film to expose the data link to connect the data link to the data line, the contact electrode having a first surface contacted with the data line and a second surface contacted with the data link,wherein the semiconductor layer overlaps with a source/drain metal pattern including the data line, the source electrode, and the drain electrode;
wherein the drain electrode protrudes from the semiconductor layer toward an upper portion of the pixel electrode, and the drain electrode connects to the pixel electrode; and
wherein the semiconductor layer is removed from where it overlaps the transparent conductive layer.
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Accused Products
Abstract
A thin film transistor substrate and a fabricating method thereof; and a liquid crystal display panel employing the same and a fabricating method thereof for simplifying a process are disclosed. A thin film transistor substrate, including: a gate line on a substrate; a data line crossing the gate line having a gate insulating film therebetween to define a pixel area; a pixel hole in the pixel area; a pixel electrode made of a transparent conductive film on the gate insulating film in the pixel hole in the pixel area; and a thin film transistor including a gate electrode connected to the gate line, a source electrode connected to the data line, a drain electrode connected to the pixel electrode, and a semiconductor layer defining a channel between the source electrode and the drain electrode, wherein the semiconductor layer overlaps with a source/drain metal pattern including the data line, the source electrode, and the drain electrode; wherein the drain electrode protrudes from the semiconductor layer toward an upper portion of the pixel electrode, and the drain electrode connects to the pixel electrode; and wherein the semiconductor layer is removed from where it overlaps the transparent conductive film.
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Citations
21 Claims
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1. A liquid crystal display device, comprising:
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first and second substrates; a gate line on the first substrate; a gate insulating film on the first substrate; a data line crossing the gate line to define a pixel area; a pixel hole in the pixel area; a pixel electrode formed of a transparent conductive layer on the gate insulating film in the pixel hole in the pixel area; a thin film transistor including a gate electrode, a source electrode, a drain electrode, and a semiconductor layer; a pad connected to at least one of the gate line and the data line, and including a lower pad electrode on the substrate and an upper pad electrode in a first contact hole that passes through the gate insulating film to expose the lower pad electrode and connected to the lower pad electrode; a data link extending from the lower pad electrode and overlapping with the data line, wherein the data link and the lower pad electrode are formed on a same layer; a contact electrode in a second contact hole that passes through the gate insulating film to expose the data link to connect the data link to the data line, the contact electrode having a first surface contacted with the data line and a second surface contacted with the data link, wherein the semiconductor layer overlaps with a source/drain metal pattern including the data line, the source electrode, and the drain electrode; wherein the drain electrode protrudes from the semiconductor layer toward an upper portion of the pixel electrode, and the drain electrode connects to the pixel electrode; and wherein the semiconductor layer is removed from where it overlaps the transparent conductive layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification